JPS6148428U - - Google Patents
Info
- Publication number
- JPS6148428U JPS6148428U JP13314784U JP13314784U JPS6148428U JP S6148428 U JPS6148428 U JP S6148428U JP 13314784 U JP13314784 U JP 13314784U JP 13314784 U JP13314784 U JP 13314784U JP S6148428 U JPS6148428 U JP S6148428U
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- optical pickup
- objective lens
- receiving element
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Optical Head (AREA)
Description
第1図a、第1図bは本考案の実施例を示すも
のであり、第1図aは光学式ピツクアツプの模式
図、第1図bはピンフオトダイオードの模式図、
第2図aは従来の光学式ピツクアツプの模式図、
第2図bはピンフオトダイオードの模式図、第3
図a、第3図bは本考案の変形例であり、それぞ
れ光学式ピツクアツプ、ピンフオトダイオードの
模式図である。
1…光源、2…偏光プリズム、6…対物レンズ
、7…デイスク、8…ピンフオトダイオード、9
…反射膜、10…透明な板。
1a and 1b show embodiments of the present invention, FIG. 1a is a schematic diagram of an optical pickup, FIG. 1b is a schematic diagram of a pin photodiode,
Figure 2a is a schematic diagram of a conventional optical pickup;
Figure 2b is a schematic diagram of a pin photodiode;
Figures a and 3b show variations of the present invention, and are schematic diagrams of an optical pickup and a pin photodiode, respectively. 1... Light source, 2... Polarizing prism, 6... Objective lens, 7... Disc, 8... Pin photodiode, 9
...Reflective film, 10...Transparent plate.
Claims (1)
記録媒体上に集光させ、該記録媒体による反射光
束を上記対物レンズを介して受光素子に導く光ピ
ツクアツプ光学系において、上記受光素子が上記
レーザー光源と上記記録媒体との間の光路中に配
置されたことを特徴とする光ピツクアツプ。 In an optical pickup optical system, a light beam from a laser light source is focused on a recording medium through an objective lens, and a light beam reflected by the recording medium is guided to a light receiving element through the objective lens, wherein the light receiving element is connected to the laser light source. An optical pickup characterized in that it is disposed in an optical path between the optical pickup and the recording medium.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13314784U JPH0433551Y2 (en) | 1984-08-31 | 1984-08-31 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13314784U JPH0433551Y2 (en) | 1984-08-31 | 1984-08-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6148428U true JPS6148428U (en) | 1986-04-01 |
JPH0433551Y2 JPH0433551Y2 (en) | 1992-08-11 |
Family
ID=30691699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13314784U Expired JPH0433551Y2 (en) | 1984-08-31 | 1984-08-31 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0433551Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62236152A (en) * | 1986-04-07 | 1987-10-16 | Olympus Optical Co Ltd | Optical pick-up |
-
1984
- 1984-08-31 JP JP13314784U patent/JPH0433551Y2/ja not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62236152A (en) * | 1986-04-07 | 1987-10-16 | Olympus Optical Co Ltd | Optical pick-up |
Also Published As
Publication number | Publication date |
---|---|
JPH0433551Y2 (en) | 1992-08-11 |
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